package com.example.service.impl;

import java.util.HashMap;
import java.util.Map;

/**
 * @ClassName: Test
 * @Description:
 * @Author:
 * @Date
 */
public class Test {
    public static void main(String[] args) {
      Map<String, Object> map = new HashMap<>();
      map.put("1", "a");
        System.out.println(map);
    }
}
